skia2/tests/sksl/shared/TextureSharpen.sksl

/*#pragma settings Sharpen*/

layout(binding=0) uniform sampler1D one;
layout(binding=1) uniform sampler2D two;

void main() {
    float4 a = sample(one, 0);
    float4 b = sample(two, float2(0));
    float4 c = sample(one, float2(0));
    float4 d = sample(two, float3(0));
    sk_FragColor = half4(half(a.x), half(b.x), half(c.x), half(d.x));
}